AAT1500 データシートの表示（PDF） - Unspecified

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AAT1500

CONSTANT CURRENT BOOST CONVERTER FOR 1 TO 4 WHITE LEDS

Unspecified 

Advanced Analog Technology, Inc.

AAT1500

Electrical Characteristics, VDD = 3.6 V, TC = 25 oC (Unless Otherwise Specified)

Operating Condition

PARAMETER

SYMBOL TEST CONDITION MIN TYP MAX UNIT

Supply Voltage

VDD

2.6

6.0 V

Under Voltage Lockout

VUVLO

1.8 2.2 2.3 V

Operating Current

Quiescent Current

Shutdown Current

IDD VDD = 5.5V, Switch On

IQ

VDD = 5.5V

VFB = 1.3V, Switch Off

I SD

VDD = 5.5V, VEN < 0.4V

2 mA

250 500 µA

0.1 1 µA

Oscillator

PARAMETER

Operating Frequency

Maximum Duty Cycle

Reference Voltage

PARAMETER

Feedback Voltage

SYMBOL

f OSC

D MAX

TEST CONDITION

MIN

0.8

79

TYP MAX UNIT

1.0 1.2 MHz

85 92 %

SYMBOL TEST CONDITION MIN TYP MAX UNIT

VIE Note 2

0.237 0.250 0.263 V

N-Channel Switch

PARAMETER

Current Limit

On-Resistance

Leakage Current

SYMBOL

I LIM

R ON

TEST CONDITION

ISWOFF VSW = 12V

MIN TYP MAX UNIT

0.60 0.75 0.90 A

0.50 0.75 1.00 Ω

0.01 20.00 µA

Control and Protection

PARAMETER

EN pin Current

OVP Threshold

Chip Enable/Disable

SYMBOL

I EN

VOVP

VENH

VENL

TEST CONDITION

Chip Enable

Chip Disable

MIN TYP MAX UNIT

4 6 µA

14.5 15.5 20.0 V

0.8 1.4 V

0.4 0.8

V

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– Advanced Analog Technology, Inc. –

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